Question 31 (Textile Engineering & Fibre Science)
The direct twist factor of a single 29.5 tex P/V yarn is 38.28 tpcm.tex1/2. To keep twist per unit length same, the indirect cotton twist multiplier (tpi.Ne-1/2 ) of 30 Ne cotton yarn will be approximately
(A) | 2.95 |
(B) | 3.27 |
(C) | 2.27 |
(D) | 3.83 |
[Show Answer]
Option B is correct.
Given in the question-
Direct twist factor(T.F) of P/V single yarn=
Count of P/V yarn(N1)=29.5 tex
Indirect cotton twist multiplier(TM)=?
Count of yarn(N2)=30s Ne
Now,
TPCM=7.049
TPI=7.049 x 2.54
TPI=17.90
To keep twist per unit length same-
TM=3.27 (Ans)